5.3 Description of Function Codes 5.3.5 H codes (High performance functions)
DC fan lock detection (bit 5) (FRN0215G2S-2G or higher, FRN0180G2□-4G or higher)
FRN0215G2S-2G or higher, and FRN0180G2□-4G or higher inverters are equipped with an internal agitator fan.
If a fan lock is detected due to an internal agitator fan fault, etc., it is possible to select whether to process this as
an alarm, or to continue to run.
Alarm processing: A FAL alarm occurs, and the motor coasts to a stop.
Continue to run processing: No alarm occurs, and the inverter continues to run.
However, even if either of these settings is specified, the transistor output “LIFE” output signal turns ON if a DC fan
lock is detected.
If cooling fan ON-OFF control is enabled (H06 = 1), depending on the conditions, the cooling fan may stop.
If this happens, the inverter will judge that the fan lock detection is normal (fan stopped with fan stop
command), and therefore even if the lock is applied due to such reasons as an internal agitator fan fault,
the “LIFE” signal will turn OFF, allowing the FAL alarm to be cleared. (When operation is resumed, a
command instructing the fan to run is issued, and the “LIFE” signal turns ON, or a FAL alarm occurs.)
If operation is continued for a long period of time with the lock applied due to such reasons as an internal agitator
fan fault, there is a danger of the life expectancy of the electrolytic capacitors on the PCB being cut short due to
local temperature rises. Be sure to carry out a check with the “LIFE” alarm, and replace the motor immediately.
Braking transistor error detection (dba) (Bit 6)
Upon detection of a built-in braking transistor error, this feature stops the inverter and displays an alarm dba. Set
data of this bit to “0” when the inverter does not use a braking transistor and there is no need of entering an alarm
state.
IP20/IP40 switching (bit 7) (FRN0115G2S-2G/FRN0060G2S-4G or lower basic type only)
On FRN0115G2S-2G/FRN0060G2S-4G or lower inverters, the protective construction can be changed from IP20
to IP40 with an option. However, it is necessary to change to a level of protection appropriate for IP40 due to the
protective coordination relationship.
For details, refer to the IP40 Option Instruction Manual.
To set data of function code H98, assign the setting of each function to each bit and then convert the 8-bit binary to
the decimal number. Refer to the assignment of each function to each bit and a conversion example below.
Lower the carrier frequency
automatically
1: Enter alarm
processing
Select life judgment threshold of DC
link bus capacitor
Judge the life of DC link bus
capacitor
Charging resistor overheat
detection protection
Detect braking transistor breakdown
1: Enter alarm
processing
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